# Tab Lock

> Protect your browsing privacy with Tab Lock. Instantly disguise sensitive tabs as Google search pages or lock them behind a secure PBKDF2-hashed password vault. Includes a "Nuclear Mode" that closes all locked tabs if the extension is disabled.

Canonical page: [https://chrome-stats.com/d/tablock](https://chrome-stats.com/d/tablock)

## Overview

- **ID:** `tablock`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Deepak
- **Category:** privacy-security,tabs
- **Daily users:** 3
- **Weekly downloads:** 1
- **Version:** 1.0.0
- **Last updated:** 2026-04-05
- **First published:** 2026-04-02
- **Size:** 29 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/tablock/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/tablock/privacy/](https://addons.mozilla.org/firefox/addon/tablock/privacy/)

## Description

Tab Lock is an advanced privacy and productivity extension designed to hide your active browsing sessions from prying eyes. Whether you're working on sensitive data, gift shopping, or just want to keep your desktop clean, Tab Lock gives you total control over your tab's visibility.

Key Features:
🎭 Google Disguise Mode: One-click transformation. Instantly mask any tab with a pixel-perfect Google Search replica. No password required—just click "Remove Lock" in the popup to return to your content.
🔒 Cryptographic Password Lock: Secure your tabs behind a full-screen vault. Uses industry-standard PBKDF2 hashing (75,000 iterations) to ensure your passwords are never stored in plain text.
🕵️ Metadata Masking: Automatically scrubs tab favicons and renames tab titles (e.g., "New Tab" or "Google") so your browser's tab bar looks innocent even when someone is standing right behind you.
☢️ Nuclear Failsafe: Our most aggressive security feature. If the extension is forcibly disabled or uninstalled, all protected tabs will immediately clear their content and close themselves to prevent any data leakage.
⌨️ Panic Shortcut: Press Ctrl+Alt+L (or your custom shortcut) to instantly trigger all locks and move your focus to a safe page.
📝 Private Vault Notes: Attach encrypted notes to your locked tabs that only reveal themselves once the correct password is entered.
📱 Firefox for Android Compatible: Full support for mobile browsing.
Tab Lock runs entirely offline. We never collect your data, see your passwords, or make any network requests. Your privacy is managed locally on your device.

## Rankings

- #57,680 — Overall
- #131 — password-protected
- #191 — uninstall

## Permissions and access

### Permissions

- `tabs`
- `storage`
- `activeTab`
- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/tablock)